KR20190005776A - Wiper system for automotive vehicle - Google Patents

Abstract

The present invention relates to a wiper system for a vehicle that is capable of allowing a blade to perform a linear motion on a window to be wiped. According to the present invention, the wiper system (1) for a vehicle, which has at least one blade (3) moving linearly on a window (5) in a parallel direction to two opposing sides (5a) of the window (5) and having a first end (31) and a second end (33), includes: a first rail (91) and a second rail (93) disposed on the side of the window (5) in such a manner as to accommodate a first runner (111) and a second runner (113) having intended curvatures corresponding to the shape of the window (5) and connected to the first end (31) and the second end (33) of the blade (3); at least one first driving motor (71) and one second driving motor (73) disposed on the first rail (91) and the second rail (93) for driving the first runner (111) and the second runner (113) through a first related coupling mechanism (131) and a second related coupling mechanism (133); and a control unit (15) for operating the first driving motor (71) and one second driving motor (73) so that the movement of the first runner (111) is synchronized with the movement of the second runner (113).

Description

[0001] WIPER SYSTEM FOR AUTOMOTIVE VEHICLE [0002]

The present invention relates to the field of vehicle window wiping and, more particularly, to a linear wiping system, which means that the blades move in linear translation over the window to be wiped.

The wiping system is generally fixed to an arm that moves in a rotational motion by a motor so as to move back and forth between a first end position and a second end position for sweeping across at least a portion of the vehicle ' At least one blade.

At present, in order to reduce the energy consumption of the vehicle, a lot of work is being done to improve the aerodynamic characteristics of the vehicle in order to improve the air permeability coefficient of the vehicle. One improvement involves changing the curvature of the vehicle, in particular by increasing the radius of curvature of the front windscreen of the vehicle. With such a windscreen, a typical rotating wiping system can not guarantee the precise wiping of such windows. Therefore, the development of a linear wiping system is required.

A linear wiping system is known from the prior art that allows a movable element having a rail positioned at the top of the window and supporting the wiper arm with the wiper blade fixed therein to move within it.

However, the wiper blade has a free end. This free end can not, in particular, follow the end connected to the arm at a rapid rate and the level of scrubbing can not be guaranteed. Also, the presence of a free end can weaken the blade, and thus the blade can bend or even break in the case of strong side winds. In addition, with this arrangement, the movable element can be damaged and particularly deformed due to the degree of freedom that the free end continues to enjoy. Moreover, due to the stiffness imposed by the wiper arm, such wiper blades can not exhibit sufficient flexibility and thus prevent the wiper blade from following the curvature of the window to be wiped.

Moreover, linear wiping systems having wiper blades with each end connected to one side of the window to be wiped are also known from the prior art. The wiping system has a motor disposed on one side of the window to be wiped to drive a movable element that allows the wiper blade to move over the window to be wiped.

However, the sides of the window to be wiped may not have the same length, and the travel distances of the ends of the blades may be different between the first wiping position and the second wiping position. Thus, such a wiping system can prove to be insufficient to wipe the window, and the area located near the end of the blade at the end of the blade may not be precisely wiped, thus potentially worsening visibility, It can damage safety.

It is an object of the present invention to at least partially alleviate the effects of the disadvantages of the prior art listed above.

Another object of the present invention, which is different from the above object, is to propose a linear wiping system which enables the entire window to be wiped to be accurately wiped.

It is a further object of the present invention to propose a wiping system that enables accurate wiping of the window to be wiped, at any curvature of the window.

In order to achieve at least one of the above-mentioned objects, an object of the present invention is configured to move in a linear translation on a window and in a direction parallel to two opposing sides of the window, and the first and second ends Wherein the wiping system further comprises at least a first rail and a second rail disposed on a side of the window, wherein at least the first and second rails Characterized in that the rails are intended to receive a first runner and a second runner, each having a curvature intended to follow the shape of the window and connected respectively to the first and second ends of the blade, For driving the first runner and the second runner respectively through a first associated engagement mechanism and a second associated engagement mechanism, Wherein at least the first drive motor and the second drive motor are configured to allow movement of the first runner and movement of the second runner to be synchronized, at least one of the first drive motor and the second drive motor being disposed And is operated by a control unit.

The presence of the first and second rails means that the blade can be pressed firmly against the window to be wiped. Moreover, the shape of this rail follows the shape of the window to be wiped, which allows the blade to come into permanent contact with the window and ensures accurate wiping in various areas of the window at any curvature of the window. Also, since the first runner and the second runner move in synchronized fashion in the rails, the use of the first drive motor and the second drive motor makes it possible to ensure accurate linear translation of the blades on the windows, Thereby enabling cleaning of the area disposed at the distal end of the housing.

The wiping system according to the present invention may include one or more of the following features, considered alone or in combination.

The first end of the blade has a spring intended to provide a connection between a first end of the blade and a first runner disposed in at least one first rail.

The second end of the blade has an attachment of a specific shape, in particular a spherical or parallelepipedal, intended to cooperate with a second runner disposed in at least one second rail.

According to an alternative form, the second end of the blade may have a spring intended to provide a connection between a second end of the blade and a second runner disposed in the at least one second rail.

The first runner and the second runner have a first end that is received within the rail and a second end that provides a clip intended to allow the runner to cooperate with the first or second end of the blade.

The first end of the runner has a wheel to allow movement along the interior of the rail.

According to one particular embodiment, the clips of the second runner have a shape complementary to the specific shape of the attachment supported by the second end of the blade.

According to one aspect, the first and second rails have an inner surface made of a material having a friction coefficient of less than 0.25.

The materials used for the inner surfaces of the first and second rails are selected from copper, tin, bronze, polytetrafluoroethylene, polyamide, graphite, nylon, acetal or mixtures of these compounds.

According to another aspect, the inner surfaces of the first and second rails are configured to allow the first runner and the second runner to move along the air layer.

According to a first alternative, the first drive motor and the second drive motor are configured to respectively move the first runner and the second runner at the same speed.

According to a second alternative, the first drive motor and the second drive motor are configured to move the first runner and the second runner at different speeds in order to alleviate the effect of the length difference of the two opposite sides of the window .

The first drive motor and the second drive motor are configured to move the blade at a speed of less than 2 m / s above the surface of the window to be wiped.

According to one aspect, the first associated coupling mechanism and the second associated coupling mechanism are selected from a belt-pulley system, a cable-pulley system, or alternatively a rack-pulley system.

According to this aspect, each of the first rail and the second rail has at least one end opening, the end opening having a configuration configured to limit damage to the first associated engagement mechanism and the second associated engagement mechanism, in particular a rounded or chamfered configuration, .

According to one particular embodiment, the wiping system comprises:

And the first drive motor is arranged in the center with the center of the second rail of the first rail and the second drive motor,

And a second blade position on a first side and a second side of the window opposite with respect to the first blade and the first drive motor and second drive motor located on a first side of the window,

And a first coupling mechanism associated with the second associated coupling mechanisms

/ RTI >

Wherein the first associated coupling mechanism and the second associated coupling mechanism are configured to:

A first four-row grooved pulley and a second four-row grooved pulley located at the center of the first rail and the center of the second rail and rotationally moving by the first and second driving motors respectively,

Two first two-row grooved pulleys and two second two-row grooved pulleys positioned respectively at the end of the first rail and the end of the second rail, and

- connecting a first two-row grooved pulley to a first four-row grooved pulley and connecting a second two-row grooved pulley to a second four-row grooved pulley, each supporting at least one runner, Four runners configured to allow movement of the runner between the two-row grooved and four-row grooved pulleys

/ RTI >

The two-row grooved pulley and the four-row grooved pulley are connected through the cable to allow the first or second blade to move over the window to be wiped.

Other features and advantages of the present invention will become more apparent from the reading of the following description given as a non-limiting description and from the accompanying drawings.

Figure 1 is a schematic elevation perspective view of a wiping system.
Figure 2 is a schematic partial view of a rail of the wiping system of Figure 1;
Figure 3a is a schematic perspective view of a first runner intended to be received in the rail of Figure 2;
Figure 3b is a schematic perspective view of a second runner intended to be received in the rail of Figure 2;
Figure 4 is a schematic perspective view of the blades of the wiping system of Figure 1;
Figure 5 is a schematic perspective view of a four-row grooved pulley constituting an associated coupling mechanism of the wiping system.
Figure 6 is a schematic perspective view of a two-row grooved pulley constituting an associated coupling mechanism of the wiping system.
7 is a schematic perspective view of the double row grooved pulley of FIG. 6 disposed at one end of the rail of FIG. 2;
8A is a schematic plan view of a wiping system in accordance with one particular embodiment.
8B is a schematic front view of the wiping system according to the particular embodiment of FIG. 8A.

In these figures, like elements have like reference numerals.

The following examples are illustrative. Although the description shows one or more embodiments, this description is not necessarily meant to imply that each reference number is associated with the same embodiment, or that the feature applies only to a single embodiment. Simple features from the various embodiments may also be combined or substituted to form other embodiments.

In the following description, a first end and a second end of the blade, a first end and a second end of the window, a first drive motor and a second drive motor, a first rail and a second rail, , A first associated coupling mechanism and a second associated coupling mechanism, a first blade and a second blade, and first and second sides of the window. This is just a form of indexing to differentiate and name similar but not identical elements. Such an index does not imply that one element takes precedence over the other, and such naming conventions can be easily interchanged without departing from the scope of the present disclosure. Such an index does not imply an order in time, for example, when evaluating the layout of the various elements that comprise the wiping system or when evaluating the operation of the wiping system.

In the following description, what is meant by " rectangular or trapezoidal shape of window " is the two-dimensional shape of this window, which means to speak its shape without considering the radius of curvature.

Also, what the "runner" means in the following description is a movable object that slides along the rail.

In the following description, various elements may first be introduced in general terms and specifically used to specify later how they are located. A particular term refers to various features of an element introduced as a generic term prior to its particular use.

In particular, reference is made to Fig. 1, which shows a vehicle wiping system 1. In order not to complicate the drawing, only a part of the wiping system 1 is shown. The wiping system (1) comprises at least one blade (3) and at least one drive motor (7).

The blade 3 (best seen in FIG. 4) is configured to move in linear translation over the vehicle window 5 to be wiped as shown by arrows F1 and F2. What the linear translation means is the translational movement of the blade 3 over the window 5 parallel to the horizontal line. The window 5 may be a rectangular or trapezoidal overall shape, such as, for example, a front windscreen. Further, in order to improve the aerodynamic characteristics of the vehicle and thus limit the energy consumption of the vehicle, the window 5 has a curvature directed toward the outside of the vehicle interior. The at least one blade 3 has a first end 31 located at a first end 50a of the window 5 and a second end 50b at a second end 50b of the window 5 opposite the first end 50a. A second end 33 positioned thereon and a blade rubber 34 disposed in contact with the window 5 to polish the window. Thus, the wiping system 1 corresponds to a linear wiping system. Generally, the wiping system 1 comprises, for example, two blades 3 positioned one on each side of a window 5 forming a windscreen. However, the wiping system 1 may have a variable number of blades 3, for example, depending on the length of the window 5 to be wiped.

At least one drive motor 7 is configured to cause the blade 3 to translate over the window 5 to be wiped, in a direction parallel to two opposite sides 5a of the window 5. To this end, at least one drive motor (7) is connected to at least one control unit (15). 1, the wiping system includes a first drive motor 71 disposed at a first end 50a of the window 5 and a second drive motor 71 disposed at a second end 50b of the window 5, And a driving motor 73. The first end 50a and the second end 50b of the window 5 correspond to the opposite side surfaces 5a. The first drive motor 71 and the second drive motor 73 operated by the at least one control unit 15 are arranged in such a manner that the first end 31 and the second end 33 of the blade 3 are synchronized So as to ensure that the blade rubber 34 is completely wiped away from the entire window 5 and, in particular, from the first end of the blade 5, (31) and the second end (33). According to the embodiment of Figure 1, two control units 15 are shown. However, the wiping system 1 can be operated by a single control unit 15.

The wiping system 1 is arranged along the side 5a of the window 5 and extends parallel to the direction of movement of the at least one blade 3 on this window 5 At least two rails (9). More specifically, the wiping system includes a first rail 91 and a second rail 93, and as shown with reference to Fig. 1, the first rail 91 is connected to the first end 91 of the window 5 50a and the second rail 93 is located at the second end 50b of the window 5. [ Advantageously, the at least one first rail 91 and the second rail 93 each have a curvature to follow the shape of the window 5 to be wiped. At least two rails 9 are intended to accommodate at least one runner 11 (best seen in Figures 3A and 3B) of the blade 3, respectively. 1, the first rail 91 is for receiving the first runner 111 and the second rail 93 is for receiving the second runner 113. [ The first runner 111 and the second runner 113 will be described later in more detail. The first drive motor 71 is disposed on the first rail 91 and the second drive motor 73 is disposed on the second rail 93.

The first runner 111 and the second runner 113 are connected to the first end 31 and the second end 33 of the blade 3, respectively. The wiping system 1 further comprises an associated engagement mechanism 13 (best seen in Figures 5 to 7) that allows the runner 11 to move. 1, the wiping system 1 includes a first associated drive mechanism 71 coupled to a first drive motor 71 for moving a first runner 111 within a first rail 91 And a second associated coupling mechanism 133 connected to the second drive motor 73 for moving the second runner 113 within the second rail 93. The second drive motor 73 is coupled to the second drive motor 73,

A first runner 111 and a second runner 113 connected to the first end 31 and the second end 33 of the blade 3 and respectively housed in the first and second rails 91 and 93, The first end 31 and the second end 33 of the blade 3 make it possible to maintain contact with the window 5. Whatever its curvature, this makes it possible, in particular, to ensure effective cleaning of the entire window 5.

Referring to Figure 1, the first end 50a of the window 5 has a length L1 and the second end 50b of the window 5 has a length L2. These lengths L1 and L2 may be the same or different depending on the vehicle considered.

At least one of the first driving motor 71 and the second driving motor 73 is connected to the first runner 111 and the second runner 113 when the length L1 and the length L2 of the window 5 are the same, At the same speed, respectively. This is because the movement of the first runner 111 and the second runner 113 is the same in this configuration. The first runner 111 and the second runner 113 are connected to the first drive motor 71 and the second drive motor 113 in order to limit the torsional load on the blade 3 when the blade translationally moves across the window 5. [ And is moved at the same speed by the drive motor 73. To this end, the control unit 15 commands the operation of the motor in such a manner that the first runner 111 and the second runner 113 move at the same speed on the first rail 91 and the second rail 93 do.

In order to alleviate the effect of the difference in length of the two opposite sides 5a of the window 5 to be wiped, at least the first drive motor 71 and the second The drive motor 73 is configured to move the first runner 111 and the second runner 113 at different speeds. Specifically, in order to ensure that the blade rubber 34 is moved across the entire window 5 and to limit the torsional load on the blade 3 when the blade moves, in particular to reduce the effect of this length difference , The first end 31 and the second end 33 of the blade 3 need to be moved at different speeds. On the contrary, in order to limit the torsional load which can be applied to the blade 3 and also to ensure that the blade rubber 34 is moved across the entire window 5, the first and second runners always contact each other The control unit 15 instructs the operation of the drive motor 7 in such a manner that the first runner 111 and the second runner 113 move at different speeds.

1, at least the first drive motor 71 and the second drive motor 73 move the blade 3 at a speed of 2 m / sec or less over the surface of the window 5 to be wiped . Advantageously, moving the blade 3 at this speed above the window 5 makes it possible to limit the heating of the material on which the blade 3 is made and the wear therefrom. Here, the material is potentially, for example, rubber.

Reference is made to Fig. 2, which shows the rail 9 in more detail. The following description applies equally to the first rail 91 or the second rail 93 of Fig. The rail 9 according to this particular embodiment can be likened to a profile element made, for example, of metal, which serves to guide the translational movement of the blade 3. The rail 9 has a front face 9a intended to be positioned towards the outside of the vehicle and a front face 9a which is partially in contact with the car body to allow the rail 9 to be installed and secured in the vehicle And has a rear surface 9b intended to engage the rear surface 9b. The rails 9 may be secured to the vehicle by any means known to those skilled in the art, such as, for example, screwing, welding or even splicing.

The rail 9 has an inner surface 95 for accommodating at least one runner 11 and a runner 11 disposed on the front face 9a and extending along the entire length of the rail 9 to cooperate with the blade 3 11 to allow passage of the portion of the associated coupling mechanism 13 to allow the runner 11 to move along the interior of the rail 9. The central opening 96 is formed in the center of the rail 9, (97) disposed at each end of the body (9).

In order to facilitate movement of the runner 11 within the rail 9, the inner surface 95 is made of a material having a coefficient of friction of less than 0.25. According to a particular embodiment of FIG. 2, the material used for the inner surface 95 of the rail 9 is selected from the group consisting of copper, tin, bronze, polytetrafluoroethylene, polyamide, graphite, nylon, acetal, . The use of this material for the inner surface 95 of the rail 9 makes it possible to limit the wear of the runner 11 when moving along the inside of the rail 9. [

According to an alternative form not shown here, the inner surface 95 of the rail 9 is configured so that the runner 11 moves on the air layer.

The end openings 97 of the rails 9 also have a shape configured to limit the damage of the associated engaging mechanism 13, for example, a rounded or chamfered shape, to prevent wear of the associated engaging mechanism 13, Lt; / RTI >

Reference is made to Fig. 4 which shows a blade 3 according to one particular embodiment. According to this particular embodiment, the first end 31 of the blade 3 is connected to the first end 31 of the blade 3 and to the first runner 111 disposed on at least one first rail 91, And the second end 33 of the blade 3 is intended to cooperate with the second runner 113 disposed in the at least one second rail 93, In particular a spherical or parallelepiped, of a particular shape. The presence of the spring 35 at the first end 31 of the blade 3 compensates for the change in distance between the first rail 91 and the second rail 93 through compression or extension of the spring 35 . In particular, the distance may vary depending on the position where the blade 3 is located on the window 5. The use of the spring 35 also allows the blade rubber 34 to be firmly pressed against the window 5 by the tension applied to the blade rubber 34 by the spring.

4, the blade 3 shows only the blade rubber 34, which means that regardless of the curvature of the window 5, the blade rubber 34 is at the first end 50a of the window But has sufficient flexibility to conform to the shape of the window 5 between the second ends 50b.

The second end 33 of the blade 3 is also provided with a second end 33 of the blade 3 and a second end 33 of the blade 3 disposed in the at least one second rail 93, And a spring 35 intended to provide a connection between the two runners 113. According to this alternative form, the first end 31 and the second end 33 of the blade 3 accordingly have springs 35, respectively.

Alternatively, according to an alternative form, not shown, the blade 3 may have a wear indicator or aging indicator that allows the user of the vehicle to notify the user of the need to replace the blade 3.

Reference is now made to Figs. 3a and 3b which illustrate a first runner 111 (Fig. 3a) and a second runner 113 (Fig. 3b) intended to cooperate with the blade 3 according to the particular embodiment of Fig. The first runner 111 and the second runner 113 are connected to each other by means of a first end 115 intended to be received in the rail 9 and a second end 115, Has a second end (117) providing a clip (118) intended to cooperate with the second end (33).

According to the embodiment of FIG. 3A, the clip 118 of the second end 117 of the first runner 111 is secured to ensure cooperation between the first runner 111 and the first end 31 of the blade 3, Has a catch (120) intended to cooperate with the free end of the spring (35) of the first end (31) of the blade (3). Advantageously, the use of this catch 120 allows the first end 31 of the blade 3 to be easily removed, so that the blade 3 can be swiftly replaced if necessary.

According to the particular embodiment of Figure 3b a clip 118 of the second runner 113 is provided to allow the second end 117 of the second runner 113 to cooperate with the second end 33 of the blade 3. [ Represents a feature 119 that complements the particular shape of the attachment 37 supported by the second end 33 of the blade 3. [

3A and 3B, the first end 115 of the runner 11 has a wheel 116 that allows the first end to move along the interior of the rail 9 . According to an alternative form not shown here, the presence of this wheel 116 can be proved to be unnecessary when the runner 11 is intended to be moved along the inside of the rail 9 on the air layer.

Reference is now made to Figs. 5-7 showing the associated engagement mechanism 13 which allows the runner 11 to move along the inside of the rail 9. Fig. The first associated mating mechanism 131 and the second associated mating mechanism 133 are selected from a belt-pulley system, a cable-pulley system, or a rack-pulley system. According to a particular embodiment shown here, the associated coupling mechanism 13 includes a system comprising a cable 139 and pulleys 135, 137. 7, the distal opening 97 of the rail 9 has a rounded edge to limit the fatigue of the cable 139. This shape for the edge of the end opening 97 can also be used in the case of an associated engagement mechanism 13 using a belt-pulley system. According to an alternative form, not shown, the end opening 97 may exhibit a funnel shape that converges towards the interior of the rail 9.

Reference is now made to Figs. 8A and 8B which show a wiping system 1 according to a particular embodiment. According to this particular embodiment, the wiping system 1 is installed on a window 5, such as a windscreen of a truck having a distinctive curvature (as can be seen in FIG. 8A), for example.

According to a particular embodiment shown here, the window 5 comprises a first side 51 and a second side 53. [ The wiping system 1 comprises a first blade 3a positioned on the first side 51 of the window 5 and a second blade 3a located on the second side of the window 5 to ensure accurate wiping of the window 5. [ And a second blade (3b) located on the second blade (53). In particular, depending on the side and especially the length of the window 5, it may be advantageous to rely on two or more blades to ensure effective removal of water which may accumulate on the window 5, May be required.

The first blade 3a and the second blade 3b are moved in the direction of the arrows F1 and F2 respectively on the first side 51 and the second side 53 of the window 5 in a linear translational movement . According to this particular embodiment, when the first blade 3a and the second blade 3b move in the direction of the arrow F1, they move in the same manner as to move them towards each other. Further, when the blades move in the direction of the arrow F2, they move in the same manner as to move them away from each other.

The wiping system 1 includes a first drive motor 71 and a second drive motor 73 located at the center of the first rail 91 and the center of the second rail 93, respectively. The first drive motor 71 and the second drive motor 73 are operated by one or more control units 15. Further, and in particular, according to this particular embodiment, the first drive motor 71 and the second drive motor 73 are operated by the control unit 15, respectively. The first side surface 51 and the second side surface 53 of the window 5 face each other with respect to the first drive motor 71 and the second drive motor 73. [

The wiping system also includes a first associated coupling mechanism 131 and a second associated coupling mechanism 133. The first associated engagement mechanism 131 and the second associated engagement mechanism 133 may include a first four-row grooved pulley 135a and a second four-row grooved pulley 135b, two first two- The second two-row grooved pulley 137a and the second two-row grooved pulley 137b and the first two-row grooved pulley 137a are connected to the first four-row grooved pulley 135a, To the second four-row grooved pulley 135b.

The first four-row grooved pulley 135a and the second four-row grooved pulley 135b are positioned at the center of the first rail 91 and the center of the second rail 93, And the second drive motor 73, respectively. According to this particular embodiment, the first rail 91 and the second rail 93 have openings to allow passage of the first four-row grooved pulley 135a and the second four-row grooved pulley 135b can do. According to another embodiment not shown here, the first four-row grooved pulley 135a and the second four-row grooved pulley 135b may be disposed within the first rail 91 and the second rail 93 have.

On the other hand, two first two-row grooved pulleys 137a and two second two-row grooved pulleys 137b are located at the ends of the first rail 91 and the second rail 93, respectively. According to the particular embodiment shown here, the first two-row grooved pulley 137a and the second two-row grooved pulley 137b are disposed outside the first rail 91 and the second rail 93. According to another embodiment not shown here, the first two-row grooved pulley 137a and the second two-row grooved pulley 137b are located within the first rail 91 and the second rail 93 .

Each of the cables 139 also supports at least one runner 11 and is connected to a cable 139 to allow the first blade 3a or the second blade 3b to be moved over the window 5 to be wiped. To allow at least one runner (11) to move between one of the two-row grooved pulleys (137a, 137b) and the one of the four-row grooved pulleys (135)

According to the particular embodiment described herein, the cable 139 is free of any delay between the start of rotation of the four-row grooved pulley 135 and the beginning of the rotation of the two-row grooved pulley 137, 135 and the two-row grooved pulley 137. More specifically, according to the present embodiment, the two-row grooved pulley 137 rotates by the rotation of the four-row grooved pulley 135, and the runner 11 is driven by the four- The movement of the pulley is transmitted through the cable 139 in such a manner as to allow it to be moved in the direction of the arrow F1 or F2.

Advantageously, the rotation of the four-row groove pulley 135 located at the center of the first rail 91 and the second rail 93 is controlled by the control unit 15, The movement of the first blade 3a and the second blade 3b is adjusted in such a manner that the second blade 3b moves in a synchronized manner in the direction of the arrow F1 or F2.

The first drive motor 71 and the second drive motor 73 may be positioned at the ends of the first rail 91 and the second rail 93, respectively, according to another embodiment not shown here. In this alternative embodiment, one of the first two-row grooved pulleys 137a and the second two-row grooved pulleys < RTI ID = 0.0 > 137a < / RTI > in a manner such as to allow runners 11 to move along the interior of the first rail 91 and the second rail 93 One of the second two-row grooved pulleys 137b is rotationally moved by the first drive motor 71 and the second drive motor 73 so that the first blade 3a and the second blade (3b) to move. According to this alternative embodiment, the first drive motor 71 and the second drive motor 73 can be controlled by a single control unit 15 or each drive motor 7 can be controlled by its own control unit 15 Lt; / RTI >

According to another alternative form not shown, the wiping system 1 may have four drive motors 7 arranged in such a way as to drive the rotation of one twisted groove pulley 137, respectively. Therefore, the four drive motors 7 are disposed at one end of the first rail 91 and the second rail 93, respectively. Further, according to this alternative form, the drive motor 7 can be controlled by a single control unit 15. Alternatively, the wiping system can include two control units 15 each configured to actuate two drive motors 7, respectively. In another alternative, the wiping system 1 may include four control units 15, each control unit 15 actuating one drive motor 7.

The various embodiments described above are non-limiting examples given by way of example. In particular, it is entirely possible for those skilled in the art to use materials other than rubber to form the blades 3 without departing from the scope of the present invention. Further, depending on the material used to form the blade 3, the speed at which the blade 3 moves over the window 5 can be changed without departing from the scope of the present invention. Moreover, those skilled in the art will be able to use any type of fastening means other than those described above to secure the rail 9 to the vehicle without departing from the scope of the present invention. Those skilled in the art will also be able to use any material having a friction coefficient of less than 0.25, other than the materials described above, to form the inner surface 95 of the rails without departing from the scope of the present invention. Moreover, those skilled in the art will be able to modify the structure of the particular feature 37 supported by the second end 33 of the blade 3 without departing from the scope of the present invention. Finally, those skilled in the art will also be able to use other types of related coupling mechanisms 13 than those described above without departing from the scope of the present invention.

It is therefore possible to obtain a linear wiping system 1 which allows precise wiping of the window 5 by the wiping system 1 described above. Furthermore, the curvature of the window 5 does not affect the level of scrubbing, since the first rail 91 and the second rail 93 follow the shape of the window 5 and thus the various angles of the window 5. The first driving motor 71 and the second driving motor 73 can change the moving speed of the first runner 111 or the second runner 113 so that any potential of the side surface 5a of the window 5 Can be compensated for.

Claims (9)

Is arranged to move linearly on the window (5) in a linear translation and in a direction parallel to the two opposite sides (5a) of the window (5) and having a first end (31) and a second end (33) A wiping system (1) comprising a blade (3), in particular a wiping system for a vehicle,
The wiping system 1 further comprises at least a first rail 91 and a second rail 93 disposed at a side 5a of the window 5 and at least a first rail 91 and a second rail 93 93 each have a curvature intended to follow the shape of the window 5 and have a first runner 111 connected to the first end 31 and a second runner 111 respectively connected to the second end 33 of the blade 3, Wherein the wiping system 1 is configured to receive the first runner 111 and the second runner 111 through the first associated engagement mechanism 131 and the second associated engagement mechanism 133, At least one first driving motor 71 and one second driving motor 73 disposed on the first rail 91 and the second rail 93 for driving the first and second rails 113 and 113, The first drive motor 71 and the second drive motor 73 are operated by the control unit 15 configured to allow the movement of the first runner 111 and the movement of the second runner 113 to be synchronized By feature Wiping system. 2. The apparatus according to claim 1, characterized in that the first end (31) of the blade (3) is connected to the first end (31) of the blade (3) and the first runner ≪ RTI ID = 0.0 > 111). ≪ / RTI > 3. A method according to claim 1 or 2, characterized in that the second end (33) of the blade (3) is designed to cooperate with the second runner (113) Characterized by having an attachment (37) of a shape, in particular a spherical or parallelepiped. 4. A method according to any one of claims 1 to 3, wherein the first runner (111) and the second runner (113) are arranged such that the first end (115) housed in the rail (9) Has a second end (117) that provides a clip (118) intended to cooperate with a first end (31) or a second end (33) of the wiper (3). The motorcycle according to any one of claims 1 to 4, wherein the first drive motor (71) and the second drive motor (73) drive the first runner (111) and the second runner (113) To the wiping system. 5. A method according to any one of claims 1 to 4, characterized in that in order to alleviate the effect of the difference in length between two opposite sides (5a) of the window (5), the first drive motor (71) And the motor (73) is configured to move the first runner (111) and the second runner (113) at different speeds. 7. A method according to any one of claims 1 to 6, wherein the first associated engagement mechanism (131) and the second associated engagement mechanism (133) are selected from the group consisting of a belt-pulley system, a cable- ≪ / RTI > 10. The apparatus of claim 9, wherein the first rail (91) and the second rail (93) each have at least one distal opening (97), the distal opening (97) Characterized by having a shape, in particular a rounded or chamfered shape, configured to limit damage to said second associated engagement mechanism (133). A wiping system (1) for wiping a window (5) according to any one of claims 1 to 8, wherein the wiping system
And the first drive motor 71 and the second drive motor (73) each disposed in the center of the heart and the second rail (93) of the first rail (91),
ㆍ The above A first blade 3a positioned on a first side surface 51 of the window 5 and a second blade 3a facing the first side surface 51 with respect to the first drive motor 71 and the second drive motor 73. [ A second blade 3b located on the second side 53 of the window 5,
ㆍ The above The first associated coupling mechanism 131 and the second associated coupling mechanism 133,
/ RTI >
Wherein the first associated coupling mechanism and the second associated coupling mechanism are configured to:
A first four rows (first row) 91 located at the center of the first rail 91 and a center of the second rail 93 and rotationally moved by the first drive motor 71 and the second drive motor 73, The grooved pulley 135a, the second four-row grooved pulley 135b,
Two first two-row grooved pulleys 137a and two second two-row grooved pulleys 137b respectively positioned at the end of the first rail 91 and the end of the second rail 93,
Connecting the first two-row grooved pulley 137a to the first four-row grooved pulley 135a and connecting the second two-row grooved pulley 137b to the second four-row grooved pulley 135b Each cable supporting at least one runner 11 and configured to allow at least one runner 11 to be moved between a two-row grooved pulley 137 and a four-row grooved pulley 4 (139)
/ RTI >
The two-row grooved pulley and the four-row grooved pulley are connected through the cable 139 to allow the first blade 3a or the second blade 3b to be moved on the window 5 to be wiped. Wiping system.

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